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Senior Java Developer Jobs in Oakville, ON (NOW HIRING)

NearSource

Senior JAVA Backend Developer

Toronto, ON · Remote

CA$80 - CA$90/hr

Senior Java Backend Developer Location: 100% Remote, Canada Experience: 7 to 10 Years Employment Type: T4 Contract Rate: CAD $80 to $90 per Hour Role Summary NearSource is seeking a Senior Java ...

Citi

Low latency Senior Java Developer

Mississauga, ON

CA$120K - CA$170K/yr

We're looking for a skilled Java Developer to enhance our platform and integrate it with trading systems across markets. Role Overview/What You'll Do * Collaborate with management to integrate ...

New

Td

Senior Java Developer, TD Securities

Toronto, ON · On-site

CA$125K - CA$156K/yr

Team Description The Counterparty Credit Risk group at TD Securities is seeking experienced Java Developers to build the next generation of risk computation platforms. The core mission of the ...

Td

Senior Java Developer, TD Securities

Toronto, ON · On-site

CA$102K - CA$125K/yr

Working knowledge of building Java services * 6+ years of experience as a software engineer working on large scale development projects * 2 to 3 years product manager experience * Strong ...

Td

Senior IT Developer

Toronto, ON · On-site +1

CA$102K - CA$125K/yr

We are seeking a Senior Java Developer to design, build, and operate scalable, event-driven, cloud-native applications using Apache Kafka, Spring Boot, and Microsoft Azure. The ideal candidate ...

Citi

Full Stack Java Developer

Mississauga, ON · Hybrid

CA$79K - CA$110K/yr

Citi is looking for a Full Stack Java Developer to join its Technology team and play a meaningful ... Opportunity to act as a subject matter expert and grow your influence across teams and senior ...

New

Citi

Java Developer

Mississauga, ON

CA$79K - CA$110K/yr

The Applications Development Intermediate Programmer Analyst is an intermediate level position ... Acts as SME to senior stakeholders and /or other team members. * Appropriately assess risk when ...

New

Capgemini

Java Full-stack Developer

Mississauga, ON · On-site

CA$86K - CA$127K/yr

* The Senior Engineer in Production Management will be responsible for the development and overall ... The candidate must have Java backend development experience with Core Java Java EE Springboot ...

Capgemini

Java Full-stack Developer

Mississauga, ON

CA$86K - CA$127K/yr

* The Senior Engineer in Production Management will be responsible for the development and overall ... The candidate must have Java backend development experience with Core Java Java EE Springboot ...

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Showing results 21-40

All JobsJava Developer JobsSenior Java Developer JobsSenior Java Developer Jobs in Oakville, ON

Senior Java Developer information

See Oakville, ON salary details

$61.2K

$113.3K

$155.9K

How much do senior java developer jobs pay per year?

As of Aug 11, 2026, the average yearly pay for senior java developer in Oakville, ON is $113,345.00, according to ZipRecruiter salary data. Most workers in this role earn between $96,061.00 and $128,232.00 per year, depending on experience, location, and employer.

What is the difference between Senior Java Developer vs Java Software Engineer?

AspectSenior Java DeveloperJava Software Engineer
Required CredentialsBachelor's in CS or related, Java certifications often preferredBachelor's in CS or related, Java certifications beneficial
Work EnvironmentTeam lead roles, project management, mentoringDevelopment-focused, coding, testing, and implementation
Employer & Industry UsageTech companies, finance, e-commerceSoftware firms, startups, enterprise IT
Common Search & ComparisonOften compared for experience level and responsibilitiesSimilar roles with slight variations in scope

The main difference between a Senior Java Developer and a Java Software Engineer lies in their responsibilities and experience. Senior Java Developers typically take on leadership, mentoring, and project management roles, while Java Software Engineers focus more on coding, development, and technical implementation. Both roles require strong Java skills and relevant credentials, but the Senior Java Developer usually has more experience and a broader scope of responsibilities.

What are some common challenges senior Java developers face when working on large-scale enterprise projects?

Senior Java Developers often encounter challenges such as maintaining code quality across large codebases, managing dependencies between modules, and ensuring optimal application performance. Collaborating with cross-functional teams—including QA, DevOps, and product management—requires clear communication and effective problem-solving. Additionally, staying updated with the latest Java frameworks and best practices is essential for delivering scalable and maintainable solutions in complex enterprise environments.

What are the key skills and qualifications needed to thrive as a senior Java developer?

To thrive as a Senior Java Developer, you need advanced proficiency in Java programming, experience with software design patterns, and a strong grasp of backend development, often supported by a degree in computer science or related field. Familiarity with frameworks like Spring, build tools such as Maven or Gradle, and version control systems like Git, as well as knowledge of cloud platforms, is typically required. Excellent problem-solving, leadership, and communication skills help you guide teams and collaborate effectively. These competencies are crucial for delivering robust, scalable software solutions and driving technical success within development teams.

What is a senior Java developer?

Senior Java Developers are experienced software engineers who specialize in using the Java programming language to design, develop, and maintain complex applications. They typically lead development teams, oversee project architecture, and ensure code quality through best practices. In addition to strong coding skills, they often mentor junior developers and collaborate with stakeholders to deliver robust software solutions. Their expertise is crucial in building scalable, high-performance applications across various industries.
What are the most commonly searched types of Java Developer jobs in Oakville, ON? The most popular types of Java Developer jobs in Oakville, ON are:
What job categories do people searching Senior Java Developer jobs in Oakville, ON look for? The top searched job categories for Senior Java Developer jobs in Oakville, ON are:
What cities near Oakville, ON are hiring for Senior Java Developer jobs? Cities near Oakville, ON with the most Senior Java Developer job openings:
Senior Java Developer jobs near you
Infographic showing various Senior Java Developer job openings in Oakville, ON as of July 2026, with employment types broken down into 86% Full Time, 5% Part Time, and 9% Contract. Highlights an 80% Physical, 7% Hybrid, and 13% Remote job distribution, with an average salary of $113,345 per year, or $54.5 per hour.

Senior JAVA Backend Developer

NearSource

Toronto, ON • Remote

CA$80 - CA$90/hr

Full-time

Re-posted 26 days ago

Job description

Job Title: Senior Java Backend Developer
Location: 100% Remote, Canada
Experience: 7 to 10 Years
Employment Type: T4 Contract
Rate: CAD $80 to $90 per Hour

Role Summary
NearSource is seeking a Senior Java Backend Developer to contribute to a large-scale cloud-native platform for a Fortune 500 product company. This role requires strong expertise in backend engineering, event-driven architectures, distributed systems, and real-time data streaming. The successful candidate will be expected to quickly onboard and deliver value within the first weeks of engagement while collaborating with global engineering teams.

Key Responsibilities

  • Design, develop, and maintain scalable backend services using Java or Go.
  • Architect and implement event-driven systems leveraging Apache Kafka and AWS streaming technologies.
  • Build and optimize high-throughput data processing pipelines and asynchronous messaging workflows.
  • Develop reliable distributed systems with strong focus on resiliency, scalability, and operational excellence.
  • Implement and maintain cloud-native solutions on AWS services including DynamoDB, MSK/Kinesis, ECS/EKS, IAM, and S3.
  • Design partitioning strategies, retention policies, access controls, and consumer architectures for Kafka-based platforms.
  • Drive implementation of data streaming solutions supporting CDC patterns and event processing requirements.
  • Apply distributed systems best practices including idempotency, retry mechanisms, eventual consistency, and fault tolerance.
  • Collaborate with cross-functional engineering teams to deliver production-ready software solutions.
  • Troubleshoot, optimize, and improve platform performance, scalability, and reliability.
  • Contribute effectively within an existing project environment and achieve rapid productivity during onboarding.

Must-Have Skills

  • 7 to 10 years of professional software engineering experience.
  • Strong backend development experience using Java with Spring Boot or Go with modern service frameworks.
  • Hands-on production experience with Apache Kafka, including:
    • Producer and consumer APIs
    • Partition design
    • Retention management
    • ACL configuration
    • Kafka Admin Client
  • Hands-on production experience with AWS services, including:
    • DynamoDB
    • MSK or Kinesis
    • ECS or EKS
    • IAM
    • S3
  • Strong experience building event-driven architectures and streaming platforms.
  • Experience with Change Data Capture (CDC) patterns and asynchronous message processing.
  • Strong understanding of delivery guarantees, including exactly-once and at-least-once processing semantics.
  • Solid knowledge of distributed systems concepts including idempotency, retries with backoff, and eventual consistency.
  • Proven ability to join active projects and contribute effectively within the first one to two weeks.

Nice-to-Have Skills

  • Experience with Apache Flink, Flink SQL, or Kafka Streams.
  • Experience building stream consumers using AWS Kinesis Client Library (KCL).
  • Experience implementing Outbox patterns, Debezium, or similar CDC frameworks.
  • Experience with DynamoDB single-table design.
  • Familiarity with GitOps deployment methodologies using ArgoCD or Flux.
  • Familiarity with Apache Iceberg, Apache Paimon, or other open table formats.

Apply now, or share your resume with salary expectations at careers@nearsource.ca.

Thank you for considering a career with us! Once you submit your application, our Talent Acquisition team will review your resume thoroughly. If there's a strong match, we'll reach out to discuss your experience, role details, benefits, compensation, and next steps. While we strive for transparency, we may not be able to respond to every applicant due to high volume, but we genuinely appreciate your time and interest.

About NearSource

NearSource Technologies is a trusted partner for future-ready software consulting, enabling Fortune 500 enterprises to accelerate digital transformation. Our global engineering teams build and deploy impactful technology for some of the world's most admired brands, working directly on long-term client initiatives.

Equal Opportunity Employer

NearSource is an equal opportunity employer committed to fostering an inclusive and respectful environment. We celebrate diversity and do not discriminate based on race, gender, religion, sexual orientation, age, disability, or background. Innovation thrives when everyone feels empowered to contribute.